Diestock



Patented July 3, 1923.

- UNITED! srvrrsA PATENT OFFICE.

WILLIAM v. limma/LAN, or'PHILAnnLrHIn,rnNNsYLvnivrA.'

Y.application nl ednoreiber 2, 1921.-l seiaifuo; 512,298.

. To aZZw/zom. t may concern l and guide. -Its object is to provide anovel- Be itgknown that I, WILLIAM V, BULMAN,

a citizen of the United States residing at f-Philadelphia, in the county of Fhiladelphia and State of Pennsylvania, have invented certain new `and useful Improvementsinf `Dlestocks; and I hereby declare that the .fol-r lowing is a full, clear, and exact description thereof, reference" being had to the accom =panying drawings, which form part of thisspecification. Y

This invention is a novel die cutting stock stock with a plurality of removable and changeable dies of different size, and an adjustable guide whereby pipes or rods of dif-A ferent sizes may be properly guided to the Vrelated cutters.V The guide can readily be adjusted so that the stock can be used for,

threading a pipe orrod of given size conforming to any one of the dies in the stock l by simply changing the position of .thev guide, and the; dies may be readily removed for repairs and replaced as desired.V I willexplain the invention with reference to the accompanying drawings, which illustrates.

one practical embodiment thereof, and set forth in the claims the novel features of the invention the novel combinations of parts for which protection' is desired.

In said drawings:

Fig. l is a view of one side ofthe completev die-stock.

1.., Fig. 2 is a bottom plan view thereof.

Fig. 3 is a view of the reverse side of the die-stockvfrom that shown-in Fig. l.

Fig. 4 is a vertical section on the line 4-4C,

'Fig48 is abottom planvvview ofi-the diestock.`r` w i The die'stock comprises av body l, which is ypreferably'cast, approximately rectangular sol in cross section, as shown, and provided at oppositersides withsoclzet members 1e forv the reception of. handle pieces 2v which maybe screwed thereinto as lindicated in Fig. 5." lThis body yhasa preferablysrectangular ex- .bore lc in the body.

tension lb onitsupper end the opening Jin Vwhich is preferablyrectangularand slightly 'smaller'. than. the rectangular opening` extending A shoulders 1d are formedin the lower cornersV through the. body, Internal of the extension lb at the 'upper end of the v Upon :these shoulderslvd issupported a removablecubical guide 3 which is ,formedl with three diametrical bores 323, 30,. These bores being arranged at right angles to and intersectingeach other, .as shown, so that Aby turning the block B'any one of these` bores may be brought into axial alinement with the bore 1 of the body for the purpose of guiding a pipe or rod into the `bore rlc Aand to the related die in thestock. If desired the guide 3 when adjusted may be secured inthe stock byna ymilled thumb 'screw 3S-tapped through awall of the extension l". Y 1

The `bottom or end of the stock oppositeV ythe extension l'b is-providedwith aremovable plate .4 which. may be fastened'thereto Y by screws ta, having an opening ib ,of-r,

slightly larger diameter than v.thelargest dier-stock. Supported .on vthis plate finv Vthe lower end of the bodyis a thread cutting die D1, which "may ,beof any suitable construction, and is prei'erablyA 'rectangular'so `pipe or .rod which may` be handled by ,the

that it can iit easily within-thebore l? in the body.r This cutting die isfconiined inthey body between :they platee 4and transversely disposed flanges` or .bars which may, -be formed integral with the bodyl inzthe casing but are prefer-ably formedseparate and secured thereto by any suitablemeans sunken screwst being indicated in the drawings.

In the opposite side walls of the body .adja-j cent the end of the bars V5 and abovethe, die.`

D1 are formed-openings 1h through which they t cutting die D1l canbe inspected; and through 95 .j 1 lwhich any cuttings can bereadilydischarged from the diestock.v

,Supportedrv upon the` bars or'fiiaV-nges, y5 within the stock is a second removablefcutting j'die D2 which may be Aof. any 'suitable construction, but is preferably formed like lthe dieDL but is adapted to `thread a-pipe or rodof larger size.V .This 'die D2is con-v lined in'posit'ionl by meansvof transverse rods orfbars whi'ch aref-,inserted through open-aVr ings l1 land 1j in .opposite sides lthelcody above the openings 1h. These bars 6 may be fastened by any suitable means; screws 6 being indicated in the drawings-so as to securelyretai-n the A'die D2 in position. lThe opening 1i is preferably made suiiiciently large to permit the die D2 to be inserted or removed therethrough When the bars '6 are removed.

The bars 6 preferably have upstanding ears 6b on onel Vend `avhich'lit between the upper and lower Walls of the opening 1i as yshown in Figs. 3 and 4. The other ends of the bars 6 are of smaller diameter yand are "adapted to project into small guide openings lk at the ends: of slot l1" in the Wall of thefbody opposite the opening 1i. A third cutting die'D3 is placed in the i i' die stool; and confined Vbetween the bars6 and-theshoulders 1d at the upper end of the bore lC of the body as shown in Figs. 4:

` jand 5. v The 'die D,3 is insertable `and removable through the opening li When the bars -6 are removed. After the cutting dies D?,

D3 areinserted in the body the bars 6 are positioned and fastened as shown and described. By removing the bars 6 either die D2' or D3, or both, can befremoved or reand the `guide in Fig. 4 when it is desired to have the the bore Bois ofi the proper size to guide va rod or'pipe to the die D1. Thus it willV Abe lseen that it is `not necessary to change the `dies D1, D2,(D3 kin the Vstock When it is'de- -L sired to thread a rodpor pipeofany one of "the'threesiZeS, it only being necessary to `adjust theguide 3 so that the bore therein corresponding to the size of the rod or pipe `Will be positioned to direct sueh'rod or pipe to the proper cutting die.

jgiiide' 3 so as toproperly directa rod or bar of the desired size to the related cutting die,

' and :themanner'of using the die/stock, will be readily understood from `the foregoing; andrequir'es no further explanation.

` What l claim'is: Y 111A vdie stock comprising afbody having an axial bore; 1a plurality of superposed cutting dies arranged Within the bore ,means lfor. removably securing each of the .dies in i "the body, and a Vchangeable vguide inthe i. fupperen'd'of'thebody having a plurality of intersecting bores respectively corresponding Ato the respective cutting dies Y, 3. A die stock ing an opening in its, side communicating 'with the bore orjthe insertion or removal guidev 'die Df'operate upon-'a rod or pipe. The bore 31i V'in the guide is of the proper size to guide-'a' rod' or pipe to the cutter D2; and-- tially as described.

iseavee whereby by properly settingthe guide a rod or pipe of any desired size may be directed by the'guide to the related cutting die.

A die stock as set 4forth invclaim l having the body provided with an openingin its side for the insertion or removal of the cutting dies. as set forth in claim l, havof cutting dies, and removable bars insertable in said opening and between thejcutting `dies to position the same Within thejbody.

et. A die stoclrasset forth in claim'rl, having the body provided With lan, openingin its side .for the removal Land insertion of cutting `dies and a removable plate `attached to the lower end of the stock to `confine-'the lowermost` cutting die therein.

. 5. A die stockras set forth in claim l, having openings in its side communicating-'With the bore and removable'bars` insertable in n the lopenings and between the ouittingdies to position the same Within thebody., :and al removable plate attached to the? lowerjend of the stock to conne the loWermost cutting.

die therein. k

6. A die vstock was having a socket adjacent the largest cutting die and a removable cu'bicalguide seatedin said socket'and provided with a pluralityioff set vforth :in: Aclaim rl i intersecting bores respectively corresponding to the related cutting :dies inthe body.

7. A die stoclrc-omprisinga bodyr having .a bore `and provided With anlopening inl its side for the insertion and removaloffcutting dies, openings 'in/opposite -sides tot :the

body belovi7 said first opening for accessto the dies; a plurality y-ol- :cutting-die's Within the body, r.transverse members. spacing the cutting dies'and a removable-(bottom platel confining the lovvermost.v cutting f'die in the body.

8. A die stock as set for-th in claimi? having a socket adjacent'thexlargest vcutting die andaremovable cubical guide-:seatedrinsaid iiange and provided 'With-a plurality oft-,in- Y tersecting bores respectively corresponding vThe utility of the die stock, the facility ofk removal and replacing of the cutting dies therein and the ease of adjustmentof the to the related cutting dies in the body.

9.v A die 'i stock comprisingta zbody @having a bore, an opening in the side of 'thegbjdy for the insertion andfrem'oval of-cuttingdies, y and openings in'opposite sides fofthe=4 body n v vbelow the saidlirstzopening vforeaccess to the dies; a removable bottomplate;aplurality lof dies arranged 'Within-the borepfrthe body; transverse members in the bodyspacing Vthe lovverniost cutting dueffromf the superposed' die, and removable members extending throughopenings 'in'the body. and

between the intermediate and uppermosti' largest cutting die, and a removablecubical guide seated in said' flange and provided j with a plurality ofA intersecting bores reto the related cutdie supportedv on said members, a pair of bars extending throughfthe upper openings and confining the said cutting die in place,

a cuttngdie ywithinthe body supported upon therlast mentioned'bars and confined in position thereby, and a cutting die confined in the lower end of the boreof thev body, substantially as described.

12. Adie stock as set forth in claim 11 having a socket in the body at the upper end of the ybore anda removable cubical, guide seated' iny said socket and provided with a plurality of intersecting bores respectively corresponding to the related cutting dies in the body, substantially as described. f n

13;'In a die stock, a body havingak rectangular bore open at its lower end, andY upper and lower pairs of openings in its opposite sides, a cutting die in the lower end of the bore; a plate attached to the body and confining the lower cutting die in thebore,

members within the lower openings holding `down thelowercutting die, a second cutting die supported on saidv members, a pair of bars within the `upper openings confn? ingthe second cutting die in'place; and a third cutting die within the body support-lv ed upon the said bars and confined in posi-Y tion thereby, substantially as described. y i

14. A die stock-"as set'forth in claim 13M having a rectangular socketat the :upper end of the bore and a removable cubical guide vseated in saidv socket and provided with a plurality of intersecting bores respeta-v tively corresponding to the related'dies'finv .the body, substantially as described.,

v15.' Ina die stoclgabody 'having a rectangular bore open atits lower end, a pair' iof openings in its opposite sides adjacentiits lower end` and a second pairof openings at oppositesides'above the'irst openings for the insertion and removal of cutting dies;

members extending across the bore at oppo- Y site sides of the iirst pair of openings, a cut-r ting die supported on saidmembers; a pair of bars in the second openingsV extending across the bore and confining the said cutting die-in place, a cutting die inthe bore supported upon the last mentioned bars and confined in position thereby; a cutting die inthe lower end of the bore below the' openings, and a plate attached to the'body and p confining the lowermost cutting die in place, substantiallyas described. 16. A die stock as set forth in claim 15 having a socket Y at. the upper endy of Athe bore, and a removable cubical guide in said WILLIAM v. lliiULMAN. 'f 

